| 초록 |
The development of soft strain sensors has attracted enormous research interest in soft robotics, smart clothing and human motion detection. In this work, mechanically tough and stretchable elastomer microfibers comprising multi-walled carbon nanotubes (CNT) and poly(3,4 ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hybrid in natural rubber (NR) matrix are prepared using microfluidic devices consisting co-axial aligned micro-capillaries. The strain sensor prepared with resulting elastomer microfibers exhibited a high stretchability with a wide sensing range. The improvement of the conductivity and linearity of the sensor originate from the existence of PEDOT:PSS in microfibers which has an important role as “bridges” by formation of the junction to connect CNTs upon stretching of the matrix. Owing to such mechanical and electronic properties, the strain sensor can demonstrate an excellent detection of various human motions in real-time. |
